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Well, to be honest, the motto of f.lux is “better lighting for your computer”. That is, this software is based on studies that say that during the day is beneficial to have a blue based light, while it’s bad at night for your sleep pattern; at night it is better to have a more “hot” light, so a reddish-orange based brightness should be better, this is the work of f.lux, this program do a transition of the brightness of your screen depending on time of the day and your latitude.

Installation

The software is available with a PPA for ubuntu 10.04 and later, to install it just type:

For other distro check the download page here, there is a tar ball available.

After that just setup your Latitude and Longitude and the Nightime temperature that you like (i’m testing Tungsten), and you are done.

As a first impression of the screen it will look a lot more yellow, but you’ll get used to that after a short time, it’s also possible to pause f.lux, if you need to do some graphic work where brightness is an important aspect.